007–Electronic Resource Dialog Box

The 007–Electronic Resource dialog box is used to insert special information about the physical characteristics of a computer or electronic file. The 007 Electronic Resource dialog box is displayed when you double-click the 007 tag in the MARC Editor and the first position of the fixed field contains ‘c’.

Select from the options in the following boxes to enter data in the 007 tag for an electronic file:

Category of material -Indicates the category of material to which the item belongs. The meaning of the remaining character positions in field 007 depends on the value in this character position.

Specific material designation - Indicates the specific material designation of the item. The specific material designation describes the special class of material (usually the class of physical object) to which an item belongs.

Color - Indicates the color characteristics of the item.

Dimensions - Indicates the dimensions of the medium.

• (007 Computer File) Indicates how the computer file is encoded. In many cases the dimensions apply to the container in which a magnetic or optical medium is encased.
• (007 Microform) Indicates the dimensions of the microform. It does not indicate the dimensions of the image. For example, 16 mm images on 35 mm microfilm are coded f (35 mm). Only the most common dimensions are indicated.
• (007 Motion Picture and 007 Video Recording) Indicates the width of the motion picture or video recording.
• (007 Projected Graphic) Indicates the width or dimensions of the projected graphic item. Width is given for filmstrips. Height and width are given for slides and transparencies. Only the most common dimensions are indicated.
• (007 Sound Recording) Indicates the diameter of an open reel or disc, or the dimensions of a cassette, cartridge, or cylinder.

Sound - Indicates whether the production of sound is an integral part of the item.

Image bit depth - A three-character number specifying the exact bit depth of the scanned images that comprises the electronic resource, or a three-character alphabetic code which indicates that the exact bit depth cannot be recorded. Bit depth is determined by the number of bits used to define each pixel representing the image. Since only exact bit depth is useful, coding should not include missing digits represented by hyphens.

File formats - Indicates whether the files which comprise the electronic resource are of the same format or type for digitally reformatted materials. The values do not indicate specific types of file formats, which may be contained in variable fields in the record. The information indicates the number of file formats used.

Quality assurance targets - Indicates whether quality assurance targets have been included appropriately at the time of reformatting or creation of the electronic resource. Targets are standard reference points which can be interpreted by a human or machine and used to measure resolution, color, and faithfulness of representation to the original.

Antecedent/source - Gives information about the source of a digital file important to the creation, use and management of digitally reformatted materials.

Level of compression - Indicates what kind of compression the electronic resource has been subjected to. It is used to judge the fidelity of the file to the original.

Reformatting quality - Indicates the reformatting quality of the electronic resource. This is an overall assessment of the physical quality of the electronic resource in relation to its intended use and can be used to judge the level of quality of a file, and an institution’s commitment to maintain its availability over time.